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Metal Recovery

Low-Cost, High-Value Metal Recovery from Electronic Waste to Increase Recycling and Reduce Environmental Impact

Low-Cost, High-Value Metal Recovery from Electronic Waste to Increase Recycling and Reduce Environmental Impact

This project seeks to adapt relatively low-cost and low-energy leaching technologies to directly recover copper and precious metals from e-waste.  This approach will enable the recovery of these metals from the mixed metals and plastics streams from e-waste and also enable recovery of the plastics. This technology could replace energy-intensive pyrometallurgical processes such as high-temperature smelting that might otherwise be used to recover metals, but due to the high-temperature the plastics are consumed. 

Utilizing these less energy-intensive and lower-cost technologies will provide the economic incentive to dramatically increase e-waste recycling by as much as 20%. The potential energy and emissions reduction are estimated at 21PJ per year and 1.2 million MT of CO2eq per year.

Project Team:
University of Utah, Sunnking, Inc.

18-02-RR-06

Low-Concentration Metal Recovery from Complex Streams Using Gas-Assisted Microflow Solvent Extraction (GAME)

Low-Concentration Metal Recovery from Complex Streams Using Gas-Assisted Microflow Solvent Extraction (GAME)

The objective of this project is to develop GAME for efficient and cost- effective extraction and purification of low-concentration, high-value metals from complex streams. The successful development of this technology will contribute to the production of high- purity precious metals from end-of-life PCBs of various sources. GAME uses three phases (aqueous, organic, and gas) to achieve an efficient separation in a confined microchannel.

Project Team:
Virginia Polytechnic Institute and State University, Phinix, LLC

19-01-RR-03